British student Meredith was brutally murdered in Perugia on 2nd November 2007. The 21-year-old has been strangled and stabbed around 40 times, including having her throat slashed.

Rudy Guede was convicted of Meredith’s murder in October 2008 and was sentenced to 30 years in prison but the judge found that he did not act alone.

Flatmate Knox and then-boyfriend Raffaele Sollecito were ordered to stand trial for murder and sexual assault.

They were found guilty for the second time on 30th January 2014.

Protest: Knox maintains she is innocent

Knox maintains she is innocent but prosecution lawyer, Manuela Comodi, told the BBC: "One person couldn’t - all at the same time - hold Meredith still and hold back her hands, because there are very few defensive wounds, inflict those wounds with a smaller knife and then give her the fatal blow with the larger knife. It is impossible. Not even superman could do it.

"The principal evidence was mixed blood traces from which were extracted mixed DNA of Amanda and Meredith. The only explanation for that mix is that Amanda was bleeding and touched objects that were covered in Meredith’s blood. There’s no other explanation."

But Sarah Gino, a forensic biologist on Amanda Knox’s defence team, disagrees. "In the case the test was done for blood. But was the test done for saliva? No. So we can’t know if inside that mixed trace there was blood because it had been demonstrated or just saliva.

"Or maybe there was blood from both of them, but what does that mean? Maybe someone had a bloody nose one time and then another moment someone cut their finger and put it down and their blood got mixed."